Explore the fascinating world of microbiomes in built environments through this illuminating 37-minute lecture by Jack Gilbert from the University of California, San Diego. Delve into the complex interactions between microorganisms, human immune systems, and the spaces we inhabit. Discover how bacterial diversity, metabolites, and antibacterial compounds shape our surroundings. Learn about the impact of sterilization in hospitals, the role of dogs in microbial transfer, and the implications for space travel. Examine groundbreaking studies on microbial forensics, including research on Air Force cadets and comparisons between Amish and Hutterite communities. Gain insights into the profound connections between our environment, gut health, and overall well-being in this comprehensive exploration of the microbiome in built environments.